irwin



2 Sheets-411a 1.

R. B. IRWIN. LETTER AND MUSIC FILE.

No. 45,327. Patented Dec. 6, 1864.

N ENE 2 Sheets-Sheet 2.

R. B. IRWIN. LETTER AND MUSIC FILE.

- Irma/707E Wm 6 21 y UNITED STATES PATENT OFFICE.

RICHARD B. IRWIN,

OF NEW. YORK, N.

LETTER AND- MUSIC 'FILE.

- Specification forming art of Letters Patent No. 45,327, dated December 6, 1864.

turned up; Fig. 3, a plan view of my letterfile thrown open, showing more clearly the" manner of securing papers therein.

Similar letters indicate like parts in all of the drawings. 7 r v My invention consists in the combination of sharp pins with one cover of a letter-file, so-

as to pierce the apertures required in the papers to be filed for the reception of the bind.- ing-cords necessary to retain them in place.

My improved letter-file consists of two stout *leaves or covers, A and B, which are united. together, when ,in use, by ai -suitable number of cords, a a a, secured at one end to the inner side of the second cover, B, and which pass through apertures d d d,piercedin the'edge of the opposite cover, 'A, toreceive them. V

A metallic piercing-plate, 0, Figs.- 1 and 2 of the drawings, is attached to the rear edge of the coverA of the file by means of light hinges c 6, so as to fold over neatly and closely upon its outer face. It is narrow-and nearly equal in length to the cover, as represented in the drawings, and has sharp pinslc k k firmly secured upon its inner face at such points as that when the plate is closed oy'er on the cover they will project slightly throughthe. apertures d d d'pierced therein.

When papers are to be filed in my improved letter-file, the binding-cords a a a are drawn entirely out of the apertures d d d in the cover A of the file, leaving it loose. The piercingplate 0 is then closed down so as that its sharp pins k k k shall project up through the apertures dd d, as seen in Fig. 3. The paper to be filed can now be 1 id upon or against the inner side of this cove A, and its edge,

when pressed down thereon,will be pierced, by the projecting pins k k k. :The apertures thus formed therein, will of course coincide exactl y with the position of the binding-cords a a' a and with the holes already made in the pa;

pers previously filed, so as that when the cords are passed through the same the paper will lie evenly in the file. After the cords havebeen drawn through the holesthus pierced, in the paper they are nextpassed through'the a'per-g tures d (1 din the cover A, and secured out w'ardly thereon. by bringing the upper and lower cords around the ends of the plate 0, and then tying them-in a knot, with the cen tral cord which passesthrou'gh anjape'rture, S, Fig.2, inthe plate by the side of the central pin, all as clearly shown in Fig. '1 of the drawings. i

1 contemplate uniting the plate 0 rlgnuy [0 the cover instead of hinging it thereto, as-described and shown. in such case the pins k-lc'k would remain permanently projecting throughthe cover A, as seen in Fig.3, and,

the cords a a a drawn through the papers pierced thereby would pass through apertures pierced in the plate, and cover by the side of each pin, as illustrated at S in Fig. 1 of the drawings.

Having thus I do not claim filing letters-between independent leaves, boards, or coversA and B by means of binding-cords aa a as 7 in' itself novel; but I What I claim as new, and desire to secure by Letters Patent, isa Combining two ormore sharp pins'with one leaf or cover of a letter-file, in such a manner as-that the papers to be filed may be pierced thereby at uniform intervals, for the reception of binding-cords'to unite said leaves'or covers and secure said papers, substantially in the manner herein set. forth. I

The foregoing specification of my improved letter-file signed by me this 14th day of ()c- "tober, A'. D1864.

RIOHD. .B. IRWIN. 1n presence of---- (mo. B. EMoRv, F. TATTERTHWAITEL ranyfies rib d my invention, 

